1896] BOTANICAL PAPERS AT BUFFALO 249 
E. B. CopELAND: Zurgor variation in mosses—The turgor 
variation in relation to temperature was specially noted, being 
in general greater in mosses than in other groups. Plasmolysis 
was used as the test of turgor. It was shown that in Mnium 
cuspidatum the accommodation to changed temperature was 
dependent upon the products of assimilation; while in Funana 
hygrometrica it was proved that this was not the case. 
A. P. ANDERSON: A simple piece of apparatus for infecting and 
Spraying plants — A syringe of peculiar structure, such as artists 
use in ‘‘finishing off” paintings, was suggested, as being a better 
distributor than the ordinary apparatus. 
E. J. Duranp: Structure of pseudo-parenchyma.— The method 
of the transformation of ordinary hyphz into pseudo-parenchyma 
is easily observed in its simplest form in Tubercularia. In 
Peziza it is not so evident, but gradual transition can be traced 
clearly, In general there is a rounding off of the cells of much 
pr ptake hyphe, and sometimes a coalescence of the cells of con- 
tiguous hyphe. 
HERMANN von ScHRENK: Notes on the hosts of Comandra 
umbellata.— This plant is by no means always a parasite, but 
when it is such it is assumed to be an ericaceous parasite. 
While most commonly attached to species of Viburnum, the 
Speaker had found it upon Potentilla Norvegica, Solidago Cana- 
>a and Phleum pratense. Attention was called to the vet 
wes attachment does not always mean absorption, and this is 
Notably true in the case of a grass host. 
laa MacMitian: Function of the submerged leaves of 
on. po tO halts upon the submerged leaves have been con- | 
0 “emed as not organs of absorption. The speaker had 
ete., the sh = when exposed in water containing small crustacea, 
avoided LS Seige hairs, standing out in every direction, are 
* 4t was sugyested that the hairs, therefore, may be 
